Q. 36

Name two phenomena that can be explained on the basis of surface tension.

Answer :

Surface tension is defined as the tension that exist on the surface of a liquid, this tension is the result of the attraction of the particles in the surface layer by the bulk of the liquid, so the molecule present at the surface tends to minimize surface area. The two phenomena that can be explained on the basis of surface tension are:

1. Bubbles are in round shape due to surface tension.


2. A needle is able to float in water is because of surface tension present on the surface of water.


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